Extreme Network Inc Ewp Premier 4hr Onsite 5520-48tExperience enterprise grade reliability with Extreme Networks' Extended Work Performance (EWP) Premier on site service for the 5520 48T switch. This 4 hour on site coverage is designed to minimize downtime and keep your network running smoothly by delivering rapid, hands on support exactly when you need it most. With 24x7 accessibility and a comprehensive maintenance plan, you can trust that your critical switching infrastructure will be serviced by